CN113497478A

CN113497478A - Charging pile

Info

Publication number: CN113497478A
Application number: CN202110713833.2A
Authority: CN
Inventors: 许林冲; 阳岳丰; 张青锋
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-10-12

Abstract

The invention discloses a charging pile which comprises a shell, wherein at least two cavities which are independently arranged are arranged in the shell, at least one cavity is used for realizing power conversion, at least one cavity is used for realizing a power distribution function, and the protection grade of the cavity used for realizing the power conversion is higher than that of the cavity used for realizing the power distribution function. In the charging pile that this application provided, through the cavity that sets up different protection levels in the shell, the protection level that will be used for realizing the cavity of power transformation is higher than being used for realizing the distribution function the protection level of cavity, and then need not the inside whole cavity of shell and set up according to high protection level, and then reduced the use cost of charging pile.

Description

Charging pile

Technical Field

The invention relates to the technical field of charging, in particular to a charging pile.

Background

With the continuous development of charging technology, charging piles are increasingly used as energy supply devices. Fill electric pile and specifically include that direct current fills electric pile, alternating-current charging stake and the integrative electric pile that fills of alternating current-direct current.

Traditional electric pile that fills includes the shell and sets up the electrical components in inside, and electrical components includes a plurality of electrical units, and wherein the electricity is connected between the electrical units, and the inner chamber of shell is a whole cavity setting, and electrical units all distributes in same inner chamber, is equipped with on the shell to be used for the access hole.

Because the electrical unit who fills electric pile is located the internal cavity of same intercommunication. If the whole electric appliance unit that fills electric pile is always considered in the design of charging high protection level, the protection design needs to be sealed according to the protection level of the electric appliance unit with the highest requirement in the electric appliance unit, and the use cost of the electric pile is high.

Therefore, how to reduce the use cost of the charging pile is a technical problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

The invention aims to provide a charging pile, and the use cost of the charging pile is reduced.

In order to achieve the purpose, the invention provides a charging pile which comprises a shell, wherein at least two cavities which are independently arranged are arranged in the shell, at least one cavity is used for achieving power conversion, at least one cavity is used for achieving a power distribution function, and the protection grade of the cavity used for achieving the power conversion is higher than that of the cavity used for achieving the power distribution function.

Preferably, two adjacent cavities are isolated by an inner plate, and the inner plate is provided with a first waterproof terminal for conductive connection.

Preferably, still include the direct current distribution unit, the distribution function includes connecting the rifle binding post that charges of direct current distribution unit and rifle that charges.

Preferably, rifle binding post charges including being located cavity inner wall's inside binding post, be used for with the outside binding post that the rifle is connected of charging and be located inside the cavity, and connect inside binding post with outside binding post's wire, the wire is located independently inside the cavity.

Preferably, inside binding post includes electrically conductive inner core, insulating housing, casing fastener, wire fastener and sealed colloid, the insulating housing periphery passes through the casing fastener with the inner wall connection of cavity, be equipped with the confession on the insulating housing the core clearing hole that electrically conductive inner core passes through, core clearing hole outer wall with electrically conductive inner core outer wall passes through sealed colloid fills, the wiring end of electrically conductive core passes through the wire fastener with the fixed electricity of wire is connected, sealed colloid with the casing fastener is located adjacent two respectively in the cavity.

Preferably, the cavity inner wall be equipped with casing fastener threaded connection's connecting post, inside binding post is still established including the cover the sealing washer in the connecting post outside, the tip of casing fastener with the sealing washer is sealed to be laminated.

Preferably, the electrically conductive inner core is located inside the core passage hole and gradually increases toward the outer periphery near the wire fastener.

Preferably, the external connection terminal is located on an outer wall of the housing, or the external connection terminal is located within the cavity in which the wire is located.

Preferably, when external wiring terminal is located outer wall on the shell, be equipped with on the shell with the waterproof terminal of second that the alternating current distribution unit is connected, waterproof terminal of second with external wiring terminal is located same side of shell or be located the different sides of shell.

Preferably, at least one of the inner terminal and the outer terminal is a waterproof terminal.

Preferably, the first watertight terminal is a single wire core terminal or a multi-wire core terminal.

Preferably, be equipped with two at least access holes on the shell, two at least be equipped with the one-to-one on the cavity the access hole, different protection level divide equally on the cavity and do not be equipped with the access hole.

Preferably, still include alternating current distribution unit, power conversion unit, direct current distribution unit, the cavity is three, alternating current distribution unit with direct current distribution unit is located same the cavity, power conversion unit and connection direct current distribution unit and the rifle binding post that charges of rifle wire are equallyd divide and are located independently the cavity.

Preferably, still include alternating current distribution unit, power conversion unit, direct current distribution unit, the cavity is four, alternating current distribution unit the power conversion unit direct current distribution unit reaches connect the direct current distribution unit with the rifle binding post that charges of rifle wire with the cavity one-to-one.

Preferably, still include alternating current distribution unit, power conversion unit, direct current distribution unit, the cavity is two, power conversion unit is located one of them the cavity, alternating current distribution unit direct current distribution unit and connection direct current distribution unit and the rifle binding post that charges of rifle that charges's wire all is located same another the cavity.

Preferably, a plurality of the cavities are arranged in a row, and two adjacent cavities are connected through a waterproof terminal.

Preferably, the plurality of cavities are arranged in sequence along the horizontal direction or the plurality of cavities are arranged in sequence from top to bottom.

Preferably, the cavities are respectively a first cavity and a second cavity, the number of the second cavities is at least two, the second cavities are laid on the side wall of the first cavity or the top wall of the first cavity or the side wall of the first cavity, and the first cavity and the second cavity are connected through a waterproof terminal.

In the technical scheme, the charging pile comprises a shell, wherein the shell comprises at least two cavities which are independently arranged, at least one cavity is used for realizing power conversion, at least one cavity is used for realizing a power distribution function, and the protection grade of the cavity used for realizing the power conversion is higher than that of the cavity used for realizing the power distribution function.

According to the protection level of the cavity, the protection level of the cavity used for achieving power conversion is higher than the protection level of the cavity used for achieving a power distribution function, so that the whole cavity inside the shell is not needed to be arranged according to the high protection level, and the use cost of the charging pile is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first charging pile according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second charging pile according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third charging pile according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth charging pile according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fifth charging pile according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sixth charging pile according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a seventh charging pile according to an embodiment of the present invention;

fig. 8 is a view showing an installation position of an internal connection terminal according to an embodiment of the present invention.

Wherein in FIGS. 1-8:

1. an alternating current distribution cavity; 1-1, a second waterproof terminal; 1-2, an alternating current distribution unit;

2. a power conversion cavity; 2-1, a power conversion waterproof terminal; 2-2, a power conversion unit;

3. a direct current power distribution cavity; 3-1, a direct current output waterproof terminal; 3-2, a direct current distribution unit;

4. a charging gun structure cavity; 4-1, internal wiring terminals; 4-1-1, an insulating shell; 4-1-2, a conductive inner core; 4-1-3, housing fasteners; 4-1-4, a wire fastener; 4-1-5, sealing ring; 4-1-6, sealing colloid; 4-2, external connecting terminals;

5. a charging gun; 6. a gun line; 7. an inner plate; 8. connecting columns; 9. a power distribution cavity.

Detailed Description

The core of the invention is to provide a charging pile, and the use cost of the charging pile is reduced.

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and the embodiments.

Please refer to fig. 1 to 8.

In a specific implementation manner, the charging pile provided by the specific embodiment of the present invention includes an outer shell, at least two cavities are independently disposed in the outer shell, at least one of the cavities is used for implementing power conversion, at least one of the cavities is used for implementing a power distribution function, and a protection level of the cavity used for implementing power conversion is higher than a protection level of the cavity used for implementing the power distribution function. Through the cavity that sets up different protection levels in the shell, the protection level that will be used for realizing the cavity of power transformation is higher than and is used for realizing the distribution function the protection level of cavity, and then need not the inside whole cavity of shell and carry out setting according to high protection level, and then reduced the use cost who fills electric pile.

Specifically, the shell is provided with at least two access holes, and the at least two cavities are provided with the access holes in one-to-one correspondence.

Specifically, fill a plurality of cavitys that adopt branch storehouse in the electric pile, can set up sealed grade difference with different cavitys as required. Preferably, cavity and access opening one-to-one, maintain get up only need according to the demand open corresponding cavity the access opening can, need not to open the shell whole, reduced because frequent switching box leads to the problem that whole stake protection level descends.

Because, be equipped with the access hole of one-to-one on two at least cavitys, when the device overhauls in the cavity that has the access hole, do not disturb other cavity internal seal circumstances, because the cavity after the partition diminishes, inside placing the device and can suitably reduce, can reduce the area of access hole, and then reduce the sealed position seal area in later stage, further reduce the use cost who fills electric pile.

In a specific embodiment, two adjacent cavities are isolated by an inner plate 7, and the inner plate 7 is provided with a first waterproof terminal for conductive connection. Specifically, the first watertight terminal is preferably a quick-insertion terminal. Wherein the inner plate 7 is arranged in a sealing way with the inner wall of the shell, or the inner plate 7 and the shell are integrally formed. Specifically, the first waterproof terminal connecting the alternating current power distribution unit 1-2 and the power conversion unit 2-2 is a power conversion waterproof terminal 2-1, and the first waterproof terminal connecting the power conversion unit 2-2 and the direct current power distribution unit 3-2 is a direct current output waterproof terminal 3-1.

The charging pile further comprises an electrical component, wherein the electrical component comprises an alternating current distribution unit 1-2, a power conversion unit 2-2 and a direct current distribution unit 3-2.

The power distribution function includes a charging gun terminal connecting the dc power distribution unit 3-2 and the charging gun 5.

The charging gun wiring terminal comprises an inner wiring terminal 4-1 positioned on the inner wall of the cavity, a wiring terminal 4-2 used for being connected with the charging gun 5 and a wire positioned inside the cavity and connected with the inner wiring terminal 4-1 and the outer wiring terminal 4-2, and the wire is positioned inside the independent cavity. The inner wiring terminal 4-1 and the outer wiring terminal 4-2 can be waterproof wiring terminals, and specifically can be plug-in waterproof wiring terminals. Specifically, the rifle binding post that charges can be one, and in order to facilitate a plurality of charges, the rifle binding post that charges also can be two at least. Specifically, the external connection terminal 4-2 is a quick-plug waterproof terminal.

Specifically, the external wiring terminal 4-2 is located on the outer wall of the shell, or the external wiring terminal 4-2 is located in a cavity where the wire is located, and specifically, the cavity is in the cavity of the charging gun structure. When the charging gun 5 is replaced, only the cavity where the lead is located needs to be opened, and the external wiring terminal 4-2 is pulled down.

Certainly, the charging gun 5 is connected in a plugging mode, so that the maintenance workload of replacing the charging gun 5 is reduced.

In another embodiment, the internal wiring terminal 4-1 comprises a conductive core 4-1-2, an insulating shell 4-1-1, a shell fastener 4-1-3, a lead fastener 4-1-4 and a sealing colloid 4-1-6, the periphery of the insulating shell 4-1-1 is connected with the inner wall of the cavity through the shell fastener 4-1-3, a core through hole for the conductive core 4-1-2 to pass through is arranged on the insulating shell 4-1-1, the outer wall of the core through hole and the outer wall of the conductive core 4-1-2 are filled with the sealing colloid 4-1-6, a wiring terminal of the conductive core is fixedly and electrically connected with the lead through the lead fastener 4-1-4, and the sealing colloid 4-1-6 and the shell fastener 4-1-3 are respectively positioned at adjacent positions Two cavities are formed in the cavity. Specifically, an inner core limiting table for limiting the conductive inner core 4-1-2 is arranged on the insulating shell 4-1-1, the free end of the terminal inner core penetrates through the inner core limiting table to be connected with the wire fastening piece 4-1-4, and a supporting table which is abutted against the inner core limiting table is arranged on the conductive inner core 4-1-2.

In order to improve the sealing property, the inner wall of the cavity is provided with a connecting column 8 in threaded connection with a shell fastening piece 4-1-3, the inner connecting terminal 4-1 further comprises a sealing ring 4-1-5 sleeved outside the connecting column 8, and the end part of the shell fastening piece 4-1-3 is in sealing fit with the sealing ring 4-1-5. Specifically, the sealing ring 4-1-5 can be sleeved outside the insulating shell 4-1-1. Wherein the connecting column 8 can be arranged on the inner wall of the cavity body in a bonding or riveting way and the like.

During installation, the insulating shell 4-1-1 penetrates through an inner plate 7 of a cavity where a lead is located to be assembled, the shell fastener 4-1-3 is fixed on a connecting column 8 on the inner side wall of the rivet welding to realize assembly, and the shell fastener 4-1-3 is used for pressing the sealing ring 4-1-5 on the inner side wall to realize sealing. The conductive inner core 4-1-2 is positioned at other cavity positions and is filled and sealed by sealant so as to ensure the sealing grade of the cavity where the lead is positioned and other connecting cavities inside.

In order to further improve the sealing property, the conductive core 4-1-2 is located in the core body passing hole at a position gradually increasing toward the outer periphery of the position close to the wire fastening member 4-1-4.

In one embodiment, the housing is provided with a second watertight terminal 1-1 connected to the ac power distribution unit 1-2, and in particular, the second watertight terminal 1-1 and the external connection terminal 4-2 are located on the same side of the housing or on different sides of the housing, wherein the second watertight terminal 1-1 and the external connection terminal 4-2 may be located on adjacent sides of the housing. Wherein the second watertight terminal 1-1 may serve as an ac input watertight terminal.

In one embodiment, as shown in fig. 7, there are three cavities, the ac power distribution unit 1-2 and the dc power distribution unit 3-2 are located in the same cavity, and the power conversion unit 2-2 and the wires of the charging gun connection terminal are located in separate cavities.

In another mode, the number of the cavities is four, and the wires of the alternating current power distribution unit 1-2, the power conversion unit 2-2, the direct current power distribution unit 3-2 and the charging gun wiring terminal correspond to the cavities one by one. The four cavities are sealed, specifically, the cavity where the power conversion unit 2-2 is located is the power conversion cavity 2, and the cavity of the alternating current power distribution unit 1-2 is the alternating current power distribution cavity 1. The cavity of the direct current distribution unit 3-2 is a direct current distribution cavity 3. The cavity where the conducting wire is located is a charging gun structure cavity 4.

During wiring, three-phase alternating current input is connected into an alternating current distribution unit 1-2 in an alternating current distribution cavity 1 through a second waterproof terminal 1-1, three-phase alternating current output of the alternating current distribution unit 1-2 is connected into a power conversion unit 2-2 in a power conversion cavity 2 through a power conversion waterproof terminal 2-1, power conversion is realized by the power conversion unit 2-2, direct current output of the direct current distribution unit is connected into a direct current distribution unit 3-2 in a direct current distribution cabin cavity through a direct current output waterproof terminal 3-1, power distribution is realized by the direct current distribution unit 3-2, and output of the direct current distribution unit is finally connected onto a gun wire 6 of a charging gun 5 through an internal wiring terminal 4-1

In one embodiment, the number of the cavities is two, the power conversion unit 2-2 is located in one cavity, and the wires of the alternating current power distribution unit 1-2, the direct current power distribution unit 3-2 and the charging gun terminal are located in the other cavity.

In particular, when wiring, the first waterproof terminal and/or the second waterproof terminal 1-1 and/or the internal terminal 4-1 may be a single-wire core terminal, i.e., only one wire is connected to each terminal structure. The first watertight terminal and/or the second watertight terminal 1-1 and/or the internal wiring terminal 4-1 may also be a multi-wire core wiring terminal, i.e. each terminal structure may enable two wires to be connected in parallel.

The cavities are arranged in rows, and two adjacent cavities are connected through a waterproof terminal, namely, the electric device in each cavity is electrically connected through the waterproof terminal. As shown in fig. 3 and 4, the plurality of cavities are sequentially arranged in a horizontal direction. As shown in fig. 1 and 2, the plurality of cavities are sequentially arranged from top to bottom.

Certainly, a plurality of cavitys are first cavity respectively with the second cavity, and the second cavity is two at least, and first cavity lateral wall or first cavity roof or first cavity lateral wall are laid to the second cavity, first cavity with the second cavity passes through waterproof terminal and connects. In a specific embodiment, the plurality of cavities are U-shaped, one cavity is disposed at a specific bottom, and two cavities are disposed right above the bottom cavity. The multiple cavities are arranged in a C shape, one cavity is arranged on the specific side, and two cavities are simultaneously arranged on the side of the cavity up and down.

In specific wiring, as shown in fig. 5 and 7, an alternating current inlet wire is connected into an alternating current distribution unit 1-2 in the alternating current distribution cavity 1 from the bottom of the alternating current distribution cavity 1 through a second waterproof terminal 1-1.

As shown in fig. 6, the ac distribution chamber 1 and the dc distribution chamber 3 are located on the same side. An alternating current inlet wire is connected into the alternating current distribution cavity 1 from the bottom of the alternating current distribution cavity 1 through a second waterproof terminal 1-1.

As shown in fig. 7, the ac power distribution chamber 1 and the dc power distribution chamber 3 may be integrated into a single chamber as the power distribution chamber 9.

The protection grades of at least two cavities are different, and the cavities with different protection grades are all provided with access holes. Because the design of adopting the branch cavity in the electric pile of this application, can carry out high protection level design to some key storehouse bodies (like power conversion storehouse), other non-key storehouse bodies or to the not high storehouse body of protection requirement design of derating to reduce the cost of whole stake.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are mutually referred to.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a fill electric pile, its characterized in that includes the shell, be equipped with the cavity of two at least independent settings in the shell, at least one the cavity is used for realizing power transformation, at least one the cavity is used for realizing the distribution function, is used for realizing power transformation the protection level of cavity is higher than being used for realizing the distribution function the protection level of cavity.

2. The charging pile according to claim 1, characterized in that two adjacent cavities are isolated by an inner plate (7), and the inner plate (7) is provided with a first waterproof terminal for conductive connection.

3. A charging pile according to claim 1, characterised by further comprising a dc distribution unit (3-2), the distribution function comprising a charging gun connection terminal connecting the dc distribution unit (3-2) with a charging gun (5).

4. A charging pile according to claim 3, characterised in that the charging gun terminals comprise an inner terminal (4-1) located on the inner wall of the cavity, an outer terminal (4-2) for connection to a charging gun (5) and a conductor located inside the cavity and connecting the inner terminal (4-1) and the outer terminal (4-2), the conductor being located inside the separate cavity.

5. The charging pile according to claim 4, characterized in that the internal connection terminal (4-1) comprises a conductive inner core (4-1-2), an insulating shell (4-1-1), a shell fastener (4-1-3), a wire fastener (4-1-4) and a sealing colloid (4-1-6), the periphery of the insulating shell (4-1-1) is connected with the inner wall of the cavity through the shell fastener (4-1-3), the insulating shell (4-1-1) is provided with a core body through hole for the conductive inner core (4-1-2) to pass through, the outer wall of the core body through hole and the outer wall of the conductive inner core (4-1-2) are filled through the sealing colloid (4-1-6), the wiring end of the conductive core body is fixedly and electrically connected with the conducting wire through the conducting wire fastening piece (4-1-4), and the sealing colloid (4-1-6) and the shell fastening piece (4-1-3) are respectively positioned in two adjacent cavities.

6. The charging pile according to claim 5, characterized in that a connecting column (8) in threaded connection with the shell fastening piece (4-1-3) is arranged on the inner wall of the cavity, the internal connecting terminal (4-1) further comprises a sealing ring (4-1-5) sleeved on the outer side of the connecting column (8), and the end part of the shell fastening piece (4-1-3) is in sealing fit with the sealing ring (4-1-5).

7. A charging pile according to claim 5, characterised in that the conductive core (4-1-2) is located inside the passage hole of the core and increases in circumference towards the wire fastener (4-1-4).

8. A charging pile according to claim 4, characterised in that the external connection terminals (4-2) are located on an outer wall of the housing, or the external connection terminals (4-2) are located in the cavity in which the conductor is located.

9. A charging pile according to claim 8, characterised in that when the external connection terminals (4-2) are located on the outer wall of the casing, a second watertight terminal (1-1) is provided on the casing, which is connected to the AC distribution unit (1-2), the second watertight terminal (1-1) and the external connection terminals (4-2) being located on the same side of the casing or on different sides of the casing.

10. A charging pile according to claim 4, characterised in that at least one of the internal terminals (4-1) and the external terminals (4-2) is a waterproof terminal.

11. The charging pile according to claim 2, characterized in that the first watertight terminal is a single-wire core connection terminal or a multi-wire core connection terminal.

12. The charging pile according to claim 1, characterized in that the housing is provided with at least two access openings, the at least two cavities are provided with one-to-one access openings, and the access openings are respectively arranged on the cavities with different protection levels.

13. The charging pile according to claim 1, characterized by further comprising three alternating current distribution units (1-2), three power conversion units (2-2) and three direct current distribution units (3-2), wherein the alternating current distribution units (1-2) and the direct current distribution units (3-2) are located in the same cavity, and the power conversion units (2-2) and wires of charging gun terminals for connecting the direct current distribution units (3-2) and the charging guns (5) are respectively located in the independent cavities.

14. The charging pile according to claim 1, characterized by further comprising four alternating current power distribution units (1-2), four power conversion units (2-2) and four direct current power distribution units (3-2), wherein the alternating current power distribution units (1-2), the power conversion units (2-2), the direct current power distribution units (3-2) and the wires of charging gun terminals for connecting the direct current power distribution units (3-2) and the charging guns (5) are in one-to-one correspondence with the cavities.

15. The charging pile according to claim 1, characterized by further comprising two alternating current power distribution units (1-2), two power conversion units (2-2) and two direct current power distribution units (3-2), wherein the power conversion units (2-2) are located in one of the cavities, and the alternating current power distribution units (1-2), the direct current power distribution units (3-2) and conductors of charging gun terminals for connecting the direct current power distribution units (3-2) and the charging guns (5) are located in the same other cavity.

16. The charging pile according to any one of claims 1-15, wherein a plurality of the cavities are arranged in a row, and two adjacent cavities are connected by a waterproof terminal.

17. The charging pile according to claim 16, wherein the plurality of cavities are arranged in sequence in the horizontal direction or the plurality of cavities are arranged in sequence from top to bottom.

18. The charging pile according to any one of claims 1 to 17, wherein the plurality of cavities are respectively a first cavity and at least two second cavities, the second cavities are laid on the side wall of the first cavity or the top wall of the first cavity or the side wall of the first cavity, and the first cavity and the second cavities are connected through waterproof terminals.